Grain-scourer



(No Model.) 2 Sheets-#Sheet '1,

C. M. GILBERT.

GRAIN SCURER. No. 293,159. Patentedfeb, 5, 1884.

u. PETERS. vnumummm. www n. a

' (No Model.) 2 sheets-sheet 2, l

` G. M. GILBERT.

GRAIN SGQURER.

15.293.159 Patented Feb. 5, 1884.

c7 4. Wyk v M m -Vr/M/ l UNITED STATES PATENT @Erica cHAR'LEs M.v GILBERT, or MILWAUKEE, WISCONSIN, AssIeNon To THE niort f `MoND, MANUFACTURING COMPANY, or LoeKronT, NEw vonk.

GRAIN-securise'.

SPECIFICATION forming part of Letterslfatent No. 293,159, dated Fekruary 5, 1884.

Application filedNovemherY, 1893. (Nomodcl.) l

.To @ZZ who/1t it 17mg/ concern/ `Be it known that I, CHART-.Es M. GILBERT,

a citizen ofthe United' States, residing at Milwaukee, ,in `the county of Milwaukee and State i 5 of Visconsin, have invented certain new and useful Improvements in Smut-Machines; and

Figure l of the drawings is a vertical seci 5 tional view ofthe machine. Fig. 5 is a detail view of the staves. Fig. 2 is ahorizontal sectional View, and Figs. 3 andaare detailviews. lhis invention has relation to grain-scourers or smut-machines; and -it has for its object to 2o rub and scour the' berries of wheat and other grain, and thereby to remove from the outer I coating ofthe berry the dirt, fuzz, and other impurities adhering to it; and it consistsinthe construction and novel arrangement ofdevices,

25 as will be hereinafter fully described,and par- Vticularly pointed out in the claimsappended.

Referring by letter to the accompanying r drawings, A designates the frame of the mill,

lwhich frame is properly housed in.

, B designates afan-case, in which are applied fan-blades B', the arms of which are madefast on a'vertical shaft, C, which is stepped in a bridge-tree, C', and guided by a crossbar, C2.

D designates a scouring-case, composed of 35 alternate staves D', of cast-iron or other suitable material, and perforated sheet-steel or other suitable sheet metal. The staves D are corrugated on their inner faces, the corrugations being wave-shaped in cross-section and 4o inclining upwardly from the plane of rotation of 4the revolving scouring-plates within said scouring-case. This cylindricalscouring-case Dis confined between a bottom plate, E, vand a dished radially-corrugated top plate, E, i11- 4 5 side of the4 frame A. Between the ease D and the walls of the frame A is a spacehaving for its bottom a perforated portion of the plate E, through which matter that is too heavy tobe carried off by the fan may escape freely. ln-

`under face with a boss, E2, in which the upper end of a sleeve, E", revolves. The lower end of this sleeve E* is provided with agear-wheel,

The bottom plate, E, has a central pas- 6o sage, fi, through it, and arms h connect the hub h with the ring h2. The arms 7L are feathered and set obliquely, so that whenthe mill is in operation they will induce strong currentsfot' air to rush up through the passage I', which 65 will greatly assist in the cleaning operation of the scourers. The hub 71, is keyed to the shaft C, and its upper face furnishes the lower bearing for the gear wheel rIhe revoluble sleeve E* is provided for aportion of its length, 7.0 f

between its middle portion and its ends, with reversely-cut serew-thrcadsf andf, and these threaded portions are provided with spiders G- G', having female threads, so that when the sleeve E is revolved they will move in opposite directions. rlhe radial arms or studs g of the spiders G G are connected to lugs g', near the ends of the scouring-plates F, by arms g2, pivoted to the studs g. and to the lugs g:

H indicates vertical fiat bars, which are se- So `cured at their upper and lower ends, respectiva ly,to the tangential perforated lugs ofthe upper corrugated plate, E, and lower ring, hi, upon the vertical shaft C. These bars are arranged alternately with relation to the scouring-plates, S5 and, serve to connect and brace the corrugated plate and lower ring upon said shaft C.

To the under side of the hub hissecured or cast with it an arm, g", having avertical sleeve, l, at its end,which forms the bearingfor a short 9o shaft, Z', carry/*ing apinion, Z2, at its upper end, which meshes with the gear-wheel This shaft has a thumb-nut, Z, at its lower end outside of the case, by which to turn the pinion to operate the plates F, to adjust them nearer 95 to or farther from the scouring-"case to suit the different kinds of grain being treated. l do not, however, wish to be understood as claimthe seourer revolves, to carry the grain along the corrugationsof the staves and Vturn it over end forend, and thereby give vit a thorough rubbing, scouring, and polishing, both by the revolving scouring-plates andby the stationary staves in the scouring-case. Vhen the grain reaches the perforated sheet-steel sections or staves of the scouring-case, the dirt, fuzz, and other impurities which have been loosened by the action of the revolving scour# ing-plates and the stationary corrugated staves in the scouring-case are at once driven through the perforations of the sheet-steel and drawn away by the fan in the' usual manner, so that 'when the centrifugal action of the revolving scouring-plates carries the grain onto the next corrugated section of the scouringcase the grain reaches it free from the dirt, fuzz, and other impurities which have been previously detached. I prefer to use alternate sheet-steel sections having parallel diagonal slits n; but I may make-the slits horizontal and irregular or verticaland irregular, or I may even use Wi reclothto form the perforated sections, Without departing from the character of this portion of the invention. v

Although I have shown a complete machine with my improvements applied, they may be applied to any'other form of machine. The grain is distributed around the inside of the case, as in other machines, by the dish-shaped top plate, E. The ease is preferably made in halves secured together by bolts.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a grain-scourer, the combinatiomwith a scouring-ease composed of alternating solid corrugated and op en-work sections, of a revolving scourer within the scouring-case, having adjustable studded scouring-plates adapted to be moved nearer to` or farther from the scouring-case, substantially as specified.

2. In a grain-scourer, the combination,with the scouring'case composed of alternate staves o r sections of solid material, having Wave-corvrugations on their inner faces and perforated sections connecting them, of arevolving scourer provided with scouring-plates having frietion-projections, substantially as specified.

In testimony whereof I affix my sig-nature in presence of two witnesses.

CHARLES M. GILBERT.

IVitnesses:

WILLIAM RICHMOND, SIMON OBERMEYER. 

